Increase RSS size

The RSS feed contains one month of articles. Since the split
of today news in a lot of entries, the size of the feed is
very large.
Fall back on SSLv3 if TLSv1 fails

This is so dirty :(
Cache the sucessful protocols

And avoid doing too many failed handshakes.
Rewrite history fetching (without CSV)

Very simple for now, does not handle going on the next page, or
categorizations (like CSV does).